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Ukraine Retakes Kolodiazi in Vivaldi's Final Phase; Drone Battalion Kills ~500 Russian Troops, Destroys 200+ Vehicles

Ukrainian forces retook the village of Kolodiazi north of Lyman on October 18 without street fighting while drone units suppressed Russian air assets and artillery. The 60th Mechanized Brigade's drone battalion destroyed 200+ Russian vehicles and killed or wounded approximately 500 Russian troops during Operation Vivaldi's fourth phase, which secured 101 km² across northern Donetsk Oblast.
AI synthesis, editor-reviewed · 1 source · October 18, 2026
Photo: Euromaidan Press

The drone battalion's ability to 'close the sky' and suppress Russian fire support allowed the 3rd Mechanized Battalion to encircle and retake Kolodiazi without urban combat—a tactical inversion of the 2023 counteroffensive, which bled manpower in street-by-street attrition. This suggests Ukrainian doctrine has shifted from mass-assault tactics to drone-enabled maneuver warfare, a pattern consistent with prior Fault Lines coverage of Ukraine's drone-officer corps and small-unit integration.

WHY IT MATTERS

Kolodiazi's capture closes the final phase of Vivaldi and denies Russia the northwestern encirclement route into Donetsk's fortress belt—a strategic objective Moscow has pursued for years.

The operation retook 277 km² and 16 settlements with casualty ratios favoring Ukraine by more than 10:1, demonstrating that small-unit drone integration and air suppression can neutralize Russian numerical advantage even in contested terrain. Watch the Third Army Corps' next objective: ISW assesses Moscow is now pivoting toward Sloviansk rather than defending the Lyman sector, which signals either a strategic concession or a redeployment north—the timing of that redeployment and its scale will indicate whether Russia is consolidating or preparing a new axis.

WHAT THIS DOESN’T TELL US

What is the current manning and equipment status of the 60th Mechanized Brigade after four phases of Vivaldi? If casualties were 10:1 favorable, the absolute number of Ukrainian losses in this operation would clarify whether the brigade retains strike capacity for follow-on operations or requires re...

Sources: Euromaidan Press
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